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Burgess Meredith as George Milton |
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Lon Chaney Jr. as Lennie Small |
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Betty Field as Mae |
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Charles Bickford as Slim |
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Roman Bohnen as Candy |
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Bob Steele as Curley |
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Noah Beery Jr. as Whit |
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Oscar O'Shea as Jackson |
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Granville Bates as Carlson |
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Leigh Whipper as Crooks |
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Helen Lynd as Susie |
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Silver Tip Baker as Old Hand (uncredited) |
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John Beach as Ranch Hand (uncredited) |
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Baldwin Cooke as Ranch Hand (uncredited) |
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Whitney De Rahm as Ranch Hand (uncredited) |
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Jack Lawrence as Ranch Hand (uncredited) |
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Eddie Dunn as Bus Driver (uncredited) |
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Henriette Kay as Girl (uncredited) |
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Howard M. Mitchell as Sheriff (uncredited) |
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Barbara Pepper as Second Girl (uncredited) |
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Carl Pitti as Ranch Hand (uncredited) |
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Charles Watt as Ranch Hand (uncredited) |
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Henny Backus as |
| Writing | Eugene Solow | Screenplay |
| Directing | Lewis Milestone | Director |
| Writing | John Steinbeck | Novel |
| Sound | Aaron Copland | Original Music Composer |
| Costume & Make-Up | Ernie Young | Makeup Artist |
| Costume & Make-Up | Harry Black | Wardrobe Supervisor |
| Editing | Bert Jordan | Editor |
| Production | Frank Ross | Associate Producer |
| Art | Nicolai Remisoff | Art Direction |
| Production | Lewis Milestone | Producer |
| Camera | Norbert Brodine | Director of Photography |
